Nelson Morgan

Professor Nelson Morgan is the former director of the International Computer Science Institute (ICSI), where he was also the Speech Group leader.[1] He is also a professor in residence (emeritus) of electrical engineering and computer science at the University of California, Berkeley.[2]

Morgan was born in 1949 and received his PhD as an NSF fellow from UC Berkeley in 1980.[3] He founded ICSI's Realization Group, which later become known as the Speech Group, in 1988. He served as director of ICSI from 1999 through 2011.[4]

He is the co-inventor of the Relative Spectral (RASTA) approach to speech signal processing, first described in a technical report published in 1991.[5][6]

In 1993, Morgan and Herve Bourlard published their work on the hybrid system approach to speech recognition, which uses neural networks probabilistically with Hidden Markov Models (HMMS).[7] The system improved automatic speech recognition techniques based on HMMs by providing discriminative training, incorporating multiple input sources, and using a flexible architecture able to accommodate contextual inputs and feedbacks. The work has been described as "seminal.".[8] Morgan won the 1996 IEEE Signal Processing Magazine Best Paper Award for a paper with Bourlard.[9]

Morgan was the principal investigator of the IARPA-funded project Outing Unfortunate Characteristics of HMMs, which sought to identify problems in automatic speech recognition technology.[10]

He has more than 200 publications, including three books.,[11][12] He is a fellow of the IEEE[13] and the International Speech Communication Association.[14] He is on the editorial board of Speech Communication Magazine, of which he is a former co-editor-in-chief.[15]

References

  1. ↑ SLTC Newsletter, IEEE Signal Processing Society, May 2012
  2. ↑ Author biography, Speech and Audio Signal Processing, Wiley Publishing, 2011
  3. ↑ NSF Graduate Research Fellows. Retrieved 28 February 2012
  4. ↑ Interview with Dr. Roberto Pieraccini, Director of ICSI at Berkeley, USA, KI - Künstliche Intelligenz, SpringerLink, published online June 29, 2012
  5. ↑ RASTA-PLP Speech Analysis, Hynek Hermansky, Nelson Morgan, Aruna Bayya, and Phil Kohn, ICSI Technical Report TR-91-069, December 1991
  6. ↑ RASTA-PLP Speech Analysis Technique, Hynek Hermansky, Nelson Morgan, Aruna Bayya, and Phil Kohn, Proceedings of the IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP-92), Vol.1, No., pp. 121-124 March 1992. doi: 10.1109/ICASSP.1992.225957
  7. ↑ Connectionst Speech Recognition: A Hybrid Approach, Nelson Morgan and Herve Bourlard, Springer International Series in Engineering and Computer Science, Vol. 247, 1993
  8. ↑ Hybrid HMM/Neural Network Based Speech Recognition in Loquendo ASR, Roberto Gemello, Franco Mana, and Dario Albesano
  9. ↑ IEEE Signal Processing Magazine Best Paper Award Recipients, IEEE Signal Processing Society
  10. ↑ Speech Tech Blog, Michele Masterson, June 20, 2012
  11. ↑ Speech and Audio Signal Processing, Ben Gold and Nelson Morgan, Wiley Publishing, 1999
  12. ↑ Speech and Audio Signal Processing, Second Edition, Ben Gold, Nelson Morgan, and Dan Ellis, 2011
  13. ↑ IEEE Fellows. Retrieved 28 February 2012.
  14. ↑ ISCA 2010 Fellows. Retrieved 28 February 2012
  15. ↑ Speech Communication Editorial Board, Elsevier Publishing.
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